#!/bin/zsh
echo "this is my sh learn test1"
read GRADE
if [ $GRADE > 90 and  $GRADE < 100 ] 
then echo  "your score is $GRADE an g A"
elif [ $GRADE > 80 ] && [ $GRADE < 90 ]
then echo " your score is $GRADE and g is B"
elif [ $GRADE > 70 ] && [ $GRADE < 80 ] 
then echo "your score is $GRADE and g is C"
elif [ $GRADE > 60 ] && [ $GRADE < 70 ] 
then echo "you score is $GRADE ang g is D"
elif [ $GRADE > 0 ] 
then echo " sorry"
else 
echo "test failed"
fi
